Thermal measuring and testing – Temperature measurement – With fluid flow deflector
Patent
1982-11-03
1983-09-13
Swisher, S. Clement
Thermal measuring and testing
Temperature measurement
With fluid flow deflector
G01K 302
Patent
active
044038720
ABSTRACT:
A device for measuring a parameter such as temperature, humidity, or the like in a fluid stream having a leading portion and a trailing portion forming an elongated longitudinal housing with a bore extending longitudinally through the portions for flow therethrough. The flow rate is internally regulated to a desired rate by a restriction in the bore located in the trailing portion. Where the fluid stream is air, the restriction provides for internal Mach number regulation at various flow rates. A first plurality of ports is located in the leading portion for boundary layer control. The device has one or more annular fluid passageways downstream of the first ports coupled to the bore and ported to the exterior to cooperate with the bore to provide a lower pressure area for flow therethrough, and a sensor disposed in at least one such passageway. The leading portion may incorporate anti-icing for air stream measurement. For temperature sensors, radiation shielding is provided.
REFERENCES:
patent: 2588840 (1952-03-01), Howland
patent: 2931227 (1960-04-01), Werner et al.
patent: 2970475 (1961-02-01), Werner
patent: 3170328 (1965-02-01), Werner et al.
patent: 3512414 (1970-05-01), Rees
patent: 4152938 (1979-05-01), Danninger
Rosemount Inc.
Swisher S. Clement
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